Hello! I have a Citroen ZX /1.4mi, 1992, motor - KDY/ with an engine problem. Question - can I replace a KDY engine with a KDX / from a peugeot 306. Are they interchangeable
They are both TU3 engines, apparently the same compression, possibly a slightly different tune and different injection gear. You'd have to check the bare engines to see if they have the same collection of bolt points and mountings.